is nitrogen missing

[fishbonez]

noticed that the edges of the leaves of my narrow leaf java fern turn yellow, some have transparent edges is this a case where they are not getting enough nitrogen?

tank conditions (24l)
ph 6.5
kh 2
lighting 1.5wpg
ferts LGA and micros and KNO3
algae no algae

plants norrow leaf java fern and some taiwan moss

cheers

[fishbonez]

anyone?

[PeterGwee]

What is your dosing routine? Is your CO2 measurements consistent? Narrow range pH test kit or those with wide ranges? (0.2 difference or more?)

Regards
Peter Gwee

[fishbonez]

add about 5ppm of N every week, add 2ml of LGA and 2 drops of micros

ph reading is obtained by using a ph test pen

[juggler]

P is also important. It's deficiency syndrome is same as N - yellowing.
Maybe you can check PO4 levels as well. Recommended level is 1.0ppm. If you are getting 0.25ppm or 0.5ppm, then you should dose this using KH2PO4, for eg.

There's also discussion that the PO4 test kits measure both organic and inorganic PO4. And plants prefer (or is it only able?) to take in inorganic PO4.

I remember Java Ferns have transparent edges for new leaves which is normal. See:
http://www.aquaticquotient.com/phpbb...ic.php?t=16718
http://www.aquaticquotient.com/phpbb...ic.php?t=16377

Hope this helps.